A PSA Airlines Bombardier CRJ700 regional jet collided with a Black Hawk helicopter while on approach at Reagan Washington National Airport at about 9 p.m. Wednesday.

An Army Black Hawk helicopter collided midair with an American Airlines flight from Wichita, Kansas, at Reagan National Airport on Wednesday.

Rescue craft are in the Potomac River below the site of the collision with D.C. fire chief John Donnelly saying "we don't know" if there are any survivors.

The crew of the Army Black Hawk helicopter involved in the deadly collision with a jetliner had thousands of hours of flight experience.

Ryan O’Hara, a father-of-one, was one of the three soldiers aboard the military helicopter, according to reports

An American Airlines flight crashed into a U.S. Army Black Hawk Helicopter over the Potomac River as it approached Ronald Reagan Washington National Airport.

A few minutes before the jet was to land, air traffic controllers asked American Airlines Flight 5342 if it could do so on a shorter runway, and the pilots agreed. Controllers cleared the jet to land, and flight tracking sites showed the plane adjust its approach to the new runway.

An American Airlines regional passenger plane with a seating capacity between 66 and 78 collided with a helicopter near Ronald Reagan Washington National Airport in Washington, D.C., on Wednesday, Jan.

The Army official said that the pilots were on a routine training flight along a familiar flight path that isn't particularly complicated.

He indicated 27 bodies had been recovered from the airplane, and one from the helicopter.

The flight appeared to collide with a helicopter just before it was scheduled to land. This is a developing story and will be updated.